Hangul syllable 뵁

It is one Korean syllable; the word around it supplies meaning. 뵁 brings the jamo ㅂ, ㅙ, and ㅇ together in one Hangul block. It contributes one spoken syllable to Korean spelling; the full word gives its meaning.

Hangul is the alphabetic writing system for Korean: its letters, called jamo, are arranged in square syllable blocks. The script's original name was Hunminjeongeum. A royal chronicle, the court's record of events, first records it in 1443; an explanatory book appeared in 1446. Hangul was created to write Korean speech, which Chinese characters did not represent directly.

Hangul is the preferred name in South Korea; North Korea uses Choseongul. Modern syllables can be encoded as one precomposed block or as a sequence of separate jamo. A Korean input method combines jamo as you type, but the separate sequence remains distinct text.

Why does 뵁 look different in different fonts?

The font changes the drawing, not the character. Fonts can change the shapes, size, and placement of ㅂ, ㅙ, and ㅇ inside the block. If 뵁 appears as an empty box, the font may not include a drawing for it; that is a display problem.